Vitamin A powder, tablets and preparation method
A technology for vitamins and powders, which can be used in pill delivery, powder delivery, pharmaceutical formulations, etc. It can solve the problems of high cost and limited effect of anti-oxidation improvement, and achieve the effect of improving anti-oxidation, improving stability, and good dispersion
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preparation example Construction
[0056] like figure 1 Shown, the preparation method of the vitamin A powder that the embodiment of the present invention provides comprises:
[0057] S101, dissolve β-cyclodextrin (β-CD) or hydroxypropyl-β-cyclodextrin (HP-β-CD) in an appropriate amount of ethanol (8.0-12mL / g), and magnetically stir until completely dissolved.
[0058] S102. Weigh a certain amount of vitamin A palmitate (the molar ratio of vitamin ester to cyclodextrin is 0.1-1), stir with an appropriate amount of ethanol (25-40 mL / g) until completely dissolved.
[0059] S103, evenly drop the vitamin A palmitate solution into the cyclodextrin solution (0.5-1 hour), make the two fully mixed, and avoid light during the mixing process.
[0060] S104, take an appropriate amount of carrageenan and moisten it with ethanol, then add distilled water, slowly add the carrageenan colloid into the inclusion solution of cyclodextrin and vitamin A palmitate, and continue stirring for 0.5-1 hour.
[0061] S105, weigh an app...
Embodiment
[0065] Weigh 1g of 2-hydroxypropyl-β-cyclodextrin, add 8.0mL ethanol to dissolve; weigh 0.34g vitamin A palmitate, add 12.0mL ethanol and stir until completely dissolved. Drop the dissolved vitamin A palmitate solution into the 2-hydroxypropyl-β-cyclodextrin solution, stir and mix thoroughly. Take 1.0g of carrageenan and wet it with 2.0mL of ethanol, add 8.0mL of distilled water, slowly add the stirred carrageenan colloid into the mixed solution of vitamin A palmitate and 2-hydroxypropyl-β-cyclodextrin, and continue stirring 30min. Weigh 0.340g of maltodextrin, stir and dissolve with 5.0mL of distilled water. Quickly add the dissolved maltodextrin to the mixture of 2-hydroxypropyl-β-cyclodextrin, carrageenan and vitamin A palmitate, stir and cool in an ice-water bath, filter to obtain solid powder, vacuum at 40°C Dried in a drying oven to obtain solid powder of vitamin A palmitate, the product is pale yellow. The solid powder is placed in a mold and pressed into tablets to ...
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